sh: add reg_base member to pci_channel

Store the base address of the pci host controller registers in struct
pci_channel and use the address in pci_read_reg() and pci_write_reg().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h
index 62ba350..90abfe3 100644
--- a/arch/sh/drivers/pci/pci-sh4.h
+++ b/arch/sh/drivers/pci/pci-sh4.h
@@ -171,13 +171,13 @@
 static inline void pci_write_reg(struct pci_channel *chan,
 				 unsigned long val, unsigned long reg)
 {
-	ctrl_outl(val, PCI_REG(reg));
+	ctrl_outl(val, chan->reg_base + reg);
 }
 
 static inline unsigned long pci_read_reg(struct pci_channel *chan,
 					 unsigned long reg)
 {
-	return ctrl_inl(PCI_REG(reg));
+	return ctrl_inl(chan->reg_base + reg);
 }
 
 #endif /* __PCI_SH4_H */